body {
  font-size: 14px;
  font-family: "Helvetica Neue", "PingFang SC", "Microsoft Yahei", 微软雅黑, STXihei, 华文细黑, sans-serif;
  color: #4a4a4a;
  height: 100%;
  margin: 0;
  // ackground: #ffffff;
  background: #f5f5f5;
}

.default-theme {
  margin: 0;
  padding: 0;
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
  flex-direction: column;
  min-height: 100%;

  .header {
    border-bottom: 1px solid rgba(160,166,169,0.3);
    box-shadow: 0 0 4px 0 rgba(0,0,0,0.1);
    background: #ffffff;

    .navbar {
      border-radius: 0;
      border: none;
      margin-bottom: 0;
    }

    .navbar-default {
      background-color: white;
    }

    .navbar-toggle {
      background-color: transparent;
      background-image: none;
      border: none;
      border-radius: 0;
    }
    .navbar-nav {
      .active {
        border-color: #69D061;
        background: #f6f6f6;
      }
    }
  }

  .main {
    width: 960px;
    height: auto;
    // margin-top: 10px;

    .topics {
      width: 100%;

      ul {
        .list-group-item {
          border: none;
          border-radius: 0;
          background-color: white;
          height: 66px;

          margin: 10px auto;

          a {
            color: #4a4a4a;
            text-decoration: none;
          }

          .topic-footer {
            height: 20px;
          }
        }
      }
    }

    .topic {
      width: 100%;
      border: none;
      border-radius: 0;
      height: auto;
      min-height: 400px;
      margin: 10px auto;
      padding: 10px 15px;

      .new_topic {
        input, textarea, select {
          margin: 5px auto;
        }
      }

      .topic-info {
        border: none;
        border-radius: 0;
        background-color: white;
        height: auto;

        .topic-title {
          width: 100%;
          height: 48px;
          margin: 5px auto 5px auto;

          .avatar {
            img {
              width: 48px;
              height: 48px;
              border-radius: 50%;
            }
          }

          .topic-title-body {
            height: 48px;
            line-height: 48px;
            text-align: center;
            margin: auto auto auto 20px;
            vertical-align: middle;
          }
        }
        .topic-body {
          width: 100%;
        }
        .topic-footer {
          height: 20px;
        }
      }
    }
  }

  .footer {

  }
}
